Add uv to CI

Author: qubvel

.github/workflows/tests.yml

@@ -41,7 +41,9 @@ jobs:
       with:
         python-version: ${{ matrix.python-version }}
     - name: Install dependencies
-      run: python -m pip install -r requirements/required.txt -r requirements/test.txt
+      run: |
+        python -m pip install uv
+        python -m uv pip install --system -r requirements/required.txt -r requirements/test.txt
     - name: Test with pytest
       run: pytest -v -n 2